[NRAO logo]
NRAO logo  


[NRAO dedication, 1957]
NRAO dedication, 1957. NRAO/AUI image


[Dedication of the 85 foot Tatel telescope]
85 foot Tatel Telescope dedication, 1958. NRAO/AUI image


[85 foot Tatel telescope]
85 foot Tatel Telescope. NRAO/AUI image


[Struve at groundbreaking for 300 foot telescope]
Struve at 300 foot ground breaking, 1961. NRAO/AUI image


[300 foot telescope]
300 foot telescope. NRAO/AUI image


[140 Foot telescope ground breaking]
140 foot telescope ground breaking, 1958. NRAO/AUI image


[NRAO 140 Foot telescope]
NRAO 140 Foot telescope. NRAO/AUI image


[Green Bank Interferometer]
Green Bank Interferometer. NRAO/AUI image


[VLA dedication]
VLA dedication, 1980. NRAO/AUI image


[VLA]
VLA. NRAO/AUI image


[AIPS logo]
AIPS logo. NRAO/AUI image


[VLBA Pie Town antenna]
VLBA Pie Town antenna. NRAO/AUI image


[300 foot telescope after 1988 collapse]
300 foot after collapse, 1988. NRAO/AUI image


[GBT ground breaking]
GBT ground breaking, 1991. NRAO/AUI image


[Green Bank Telescope]
Green Bank Telescope. NRAO/AUI image


[Christening block at ALMA Camp ground breaking]
Alma Camp ground breaking. NRAO/AUI image


[ALMA]
ALMA. NRAO/AUI image


[4 NRAO Directors]
Lo, Vanden Bout, Roberts, Heeschen - 4 NRAO Directors at 50th anniversary. NRAO/AUI image


NATIONAL RADIO ASTRONOMY OBSERVATORY ARCHIVES

Records of the National Radio Astronomy Observatory: Folder listing

Electronics Division Series


TitleElectronics Division general correspondence
Start Date1970
End Date1982
Notes1 folder
 [Range 3A Box 1]

TitleCenter for Ultra Low-Noise Electronics
Start Date1987
End Date1988
Notes1 folder. Includes University of Virginia proposal to NSF for the Center, summary of plan for cooperation between UVa and NRAO for the proposed Center
 [Range 3A Box 1]

TitleCorrelator - Model III disposition
Start Date1991
Notes1 folder
 [Range 3A Box 1]

TitleDiode development
Start Date1977
End Date1979
Notes1 folder. Correspondence and reports
 [Range 3A Box 1]

TitleDiodes - Schottky diode development - Mattauch - Correspondence and reports
Start Date1969
End Date1983
Notes1 folder
 [Range 3A Box 1]

TitleDiodes - Schottky diode development - Mattauch - Reports on contract work
Start Date1976
End Date1980
Notes1 folder
 [Range 3A Box 1]

TitleDiodes
Start Date1972
End Date1983
Notes1 folder
 [Range 3A Box 1]

AuthorHein Hvatum
TitleEngineering - Hein Hvatum lab notebook
Start Date5/12/1964
End Date5/25/1965
Notes Includes notes on 85 foot, interferometer, 140 foot, 300 foot, 36 foot
 [Range 3A Box 1]

TitleHEMT development project
Start Date1983
End Date1984
Notes1 folder
 [Range 3A Box 1]

TitleHomology test set
Start Date1970
End Date1972
Notes1 folder. Correspondence and reports, many by John Payne
 [Range 3A Box 1]

TitleInterference measurement system
Start Date1967
Notes1 folder
 [Range 3A Box 1]

AuthorJohn W. Findlay
TitleLow noise pre-amplifiers for radio astronomy
Start Date3/24/1958
NotesNational Radio Astronomy Observatory Technical Note No. 1
 [Range 3A Box 1]

TitleMagnetic tape output system
Start Date1964
End Date1966
Notes1 folder
 [Range 3A Box 1]

TitleMaser - General correspondence
Start Date1961
End Date1967
Notes1 folder
 [Range 3A Box 2]

TitleMaser proposal - Airborne Instruments Laboratory
Start Date1961
Notes1 folder
 [Range 3A Box 2]

TitleMaser proposal - Hughes
Start Date1959
End Date1961
Notes1 folder
 [Range 3A Box 2]

TitleMaser proposal - Michigan
Start Date1961
Notes1 folder
 [Range 3A Box 2]

TitleMaser proposal - University of Colorado
Start Date1970
End Date1971
Notes1 folder
 [Range 3A Box 2]

TitleMaser receiver development
Start Date1975
End Date1977
Notes1 folder
 [Range 3A Box 2]

AuthorHein Hvatum
TitleMaser - Hein Hvatum lab notebook
Start Date9/15/1961
End Date1/8/1964
 [Range 3A Box 2]

TitleMaser - 26.5 - 32 GHz
Start Date1976
End Date1978
Notes1 folder
 [Range 3A Box 2]

TitleMillimeter wave experiments
Start Date1961
End Date1964
Notes1 folder
 [Range 3A Box 2]

TitleMillimeter wave experiments - Field operations
Start Date1964
End Date1965
Notes1 folder
 [Range 3A Box 2]

TitleMillimeter wave oscillators
Start Date1978
Notes1 folder
 [Range 3A Box 2]

TitleOccultation experiment
Start Date1963
End Date1967
Notes1 folder
 [Range 3A Box 2]

TitleParametric amplifier
Start Date1964
End Date1967
Notes1 folder
 [Range 3A Box 3]

TitleJosephson junction parametric amplifier
Start Date1976
End Date1977
Notes1 folder. Consulting contract with Raymond Chiao
 [Range 3A Box 3]

AuthorWarren G. Wooddell
TitlePerformance checks of Cal Tech IF multiplier
Start Date4/1964
 [Range 3A Box 3]

TitlePulsar signal processor
Start Date1982
Notes1 folder
 [Range 3A Box 3]

TitlePulsating source receiver
Start Date1968
End Date1973
Notes1 folder. Includes pulsating source receiver log for 9/24/1968-12/31/1970
 [Range 3A Box 3]

TitleReceivers - 1.3 - 1.8 GHz receiver
Start Date1982
End Date1989
Notes1 folder
 [Range 3A Box 3]

TitleReceivers - 3.2 mm receiver
Start Date1963
End Date1965
Notes1 folder
 [Range 3A Box 3]

TitleReceivers - 11 and 21 cm receivers
Start Date1964
End Date1966
Notes1 folder
 [Range 3A Box 3]

TitleReceivers - 6 cm receiver loan to CSIRO
Start Date1967
End Date1969
Notes1 folder
 [Range 3A Box 3]

TitleReceivers - Autocorrelation receiver
Start Date1961
End Date1982
Notes1 folder
 [Range 3A Box 3]

TitleReceivers - Autocorrelation receiver - 100 channel
Start Date1960
End Date1966
Notes1 folder
 [Range 3A Box 3]

TitleReceivers - 0.3K bolometer receiver
Start Date1979
End Date1980
Notes1 folder
 [Range 3A Box 4]

TitleReceivers - Cooled 21 cm receiver
Start Date1976
Notes1 folder
 [Range 3A Box 4]

TitleReceivers - Cooled OH receiver
Start Date10/28/1969
 [Range 3A Box 4]

TitleReceivers - Multifilter 100 kc
Start Date1961
End Date1963
Notes1 folder
 [Range 3A Box 4]

TitleReceivers - Solid state standard
Start Date1960
End Date1985
Notes1 folder
 [Range 3A Box 4]

TitleReceivers - Standard receiver - drawings
Start Date1961
End Date1962
Notes1 folder
 [Range 3A Box 4]

TitleReceivers - VLBA receiver development
Start Date1983
End Date1985
Notes1 folder
 [Range 3A Box 4]

TitleReceivers - Wide band multichannel receivers
Start Date1967
End Date1968
Notes1 folder
 [Range 3A Box 4]

TitleSpectral line processor
Start Date1970
Notes1 folder
 [Range 3A Box 4]

AuthorRay Hallman
TitleStandard calendar
Start Date1969
Notes1 folder
 [Range 3A Box 4]

TitleTechnical - Hein Hvatum lab notebook
Start Date12/13/1962
End Date5/6/1965
NotesCovers primarily electronics and technical matters. Includes notes on 85 foot, interferometer, 140 foot, general electronics, VLA, staff
 [Range 3A Box 5]

TitleVLB processor - Leach dispute
Start Date1968
End Date1972
Notes1 folder
 [Range 3A Box 5]

TitleVLB Mark II terminal - Max Planck Institut fuer Radioastronomie correspondence
Start Date1971
Notes1 folder
 [Range 3A Box 5]

TitleVLB Mark II terminal - Training class
Start Date4/1971
Notes1 folder
 [Range 3A Box 5]

AuthorF.J. Low; A.W. Davidson
TitleWater vapor - Measurements of atmospheric attenuation at 1 millimeter and a description of a portable spectral hygrometer
Start Date9/1965
 [Range 3A Box 5]

TitleWater vapor monitoring
Start Date1967
End Date1971
Notes1 folder
 [Range 3A Box 5]

TitleWork done for others
Start Date1997
Notes1 folder. Work done by NRAO for others, contracted or proposed
 [Range 3A Box 5]

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